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HeatShield spark plug boot heat socks combine double-wall construction and special heat coatings to protect plug wires from ambient heat exposure and damage up to 649°C. They can even help in instances where the spark plug boot directly touches the header or manifold.
Special heat treatment of the fibreglass reflects and dissipates heat, offering superior levels of ambient heat protection for your expensive plug wire sets. These heat shields also prevent misfires caused by plug-wire burnout, helping prevent critical engine damage and performance losses. The result is extended plug wire and boot life and increased ignition-system performance through reduced wire resistance.
The universal design fits most spark plug boot angles, is very easy to install and will not hinder spark plug changes. Simply place the ring side on end of spark plug boot and slide the wide end towards the wire, the ring side should rest between cylinder head and top of plug boot.
Always wear safety glasses, a dust mask and gloves when handling this product.
When choosing a heat shield, there’s nothing like the quality of HeatShield Products. Insul-Boot™ is the original spark plug heat sock introduced over 20 years ago. Rugged double wall high construction fits almost every boot out there. It has inspired many knock offs but the original is still the best spark plug wire heat shield there is.
Made in the USA from premium materials, HeatShield stand by their temperature ratings and offer you genuine products that are #racetested.
SHIPPING IS FREE* for orders of £75 and over
, regardless of the weight of your order.
We've tried to keep all other shipping costs as low as we can.
Carriage starts at just £0.95 (inc VAT) for small items, with our most common courier rate set at £5.99 for orders of 5kg (enough for 5 litres of oil).
We give an estimate of delivery dates as you shop and in your basket. The vast majority of items are held in stock and dispatched from our UK warehouse and we'll do all we can to get your order to you as quickly as possible.
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